JPH0614091A - Earphone microphone - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an earphone / microphone that is easy to use and can obtain a clear audio signal even in a noisy place. [Arrangement] An earphone 31 and a unidirectional microphone 32 are provided. Earphone 31 and microphone 3
An almost linear arm 41 having a predetermined hardness is provided while connecting the two. The arm 41 is provided with means 42, 43 for fixing the direction of the directional axis of the microphone 32 in the direction of the mouth of the user.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earphone / microphone used in a mobile phone or the like.

[0002]

2. Description of the Related Art As a portable telephone, one having a form as shown in FIG. 4 has been considered. That is, this portable telephone is divided into a telephone body 10 and an earphone microphone (external handset) 30. And
The telephone body 10 is provided with various circuits (not shown) for realizing a call, and the transmitting / receiving antenna 1
1. Various function control keys such as a dial key Kd, a transmission key Ka, and an end key Kb are provided. Although not shown, the main body 10 of the telephone can be attached to the waist of the user or hung from the shoulder by a belt or the like.

Further, the earphone microphone 30 has an earphone 31 of an inner ear type which functions as a receiver and a microphone 32 which functions as a transmitter, and these are connected through a flexible connecting cord 33 to the connector plug 3.
4 and the plug 34 is connected to the connector jack 12 of the telephone body 10.

However, in this case, the earphone 31 is connected to the tip of the cord 33, and the microphone 32 is located at a position of about 13 to 15 cm from the earphone 31 in the middle of the cord 33, that is, the user hears the earphone 31 in his ear. When set, a position that properly collects the voice of the user,
For example, it is provided at a position that is the height from the mouth to the throat.

When a call is made, the call key and the dial key Kd are pressed to make a call and dial, and when a call is made, the call is made by pressing the call key Ka. Further, by pressing the end key Kb, the call is ended.

Therefore, according to this portable telephone,
When the earphone 31 is set in the ear, it is not necessary to hold the handset during the call, and the call can be performed hands-free. Or, when there is an incoming call while walking,
An incoming call can be received by simply pressing the call key Ka, and the handset can be used more conveniently than a general portable telephone in which the handset is integrated in the telephone body.

FIG. 5 shows another example of the earphone microphone 30, and in the example shown in FIG. A, an arm 35 is provided in an earphone 31 of an inner ear type, and a microphone 32 is provided at the tip of this arm 35. That is the case.

Further, in the example shown in FIG. 5B, the earphone 31 is an outer ear type supported by a headband 36, and the earphone 31 is provided with a microphone 32 through an arm 35.

When these earphone microphones 30 are used, hands-free conversation can be performed, as in the earphone microphone 30 of FIG. In addition, even when an incoming call is received while walking, the incoming call can be received by simply pressing the call key Ka, which can be conveniently used.

[0010]

However, in the earphone microphone 30 of FIG. 4, although the microphone 32 is provided at a position where the voice of the user is properly collected, it is not actually used. For example, as shown in FIG. 6, when the earphone 31 is set in the ear, the microphone 32 comes to a position where the earphone 31 hangs substantially right below the ear, and the microphone 32 is placed in front of the user's mouth like a general microphone. Never be located in.

For this reason, the distance between the mouth and the microphone 32 becomes wider than that of a general transmitter, so that the microphone 32 easily picks up ambient noise, and when the surroundings are noisy, the voice level of the user is increased. Is small and the level of surrounding noise is large, resulting in a voice signal with poor clarity. Therefore, the earphone microphone 30 of FIG. 4 is not suitable for use in a noisy environment.

Further, in the earphone microphone 30 of FIGS. 5A and 5B, the cord 33 is entangled with the arm 35 and is difficult to use. Furthermore, by bending the arm 35,
While in use, the microphone 32 can be located near the mouth, but it looks like an operator of a telephone, which is an exaggeration for a person to use the telephone, and is not suitable for public use. I feel resistance.

The present invention is intended to solve the above problems.

[0014]

For this reason, in the present invention, when the reference numerals of the respective parts correspond to the embodiments described later, the earphone 31 and the unidirectional microphone 32 are provided.
And the earphone 31 and the microphone 32 are connected to each other, and the substantially linear arm 41 having a predetermined hardness.
And means 42 for fixing the direction of the directional axis of the microphone 32 to the arm 41 in the direction of the user's mouth,
And 43 are provided.

[0015]

By the arm 41 and the supporting members 42 and 43, the direction of the directional axis of the microphone 32 is fixed in the direction of the mouth of the user.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, an earphone 31 is of an inner ear type, and a connecting arm 41 is provided below the earphone 31 in a downward direction. The arm 41 is formed of a relatively hard plastic material in a substantially straight line shape, and in this example, has a hollow pipe shape, and a part of the cord 33 extending from the plug 34 to the earphone 31 is provided therein. Is provided.

Further, a microphone 32 is provided at the lower end of the arm 41 so that the directional axis direction is variable. That is, for example, as shown in an enlarged manner in FIG. 2, the first support member 42 is provided at the lower end of the arm 41. in this case,
The member 42 is, for example, in the shape of a pipe, is concentrically provided with the arm 41, and is slidably rotatable about the central axis of the arm 41.

A second support member 43 is provided for the support member 42. The member 43 is provided so that its central axis is orthogonal to the central axis of the member 42 and is rotatable and slidable. Then, the microphone 32 is fixed and integrally provided to the member 43. The microphone 32 is unidirectional.

At this time, the length of the arm 41 is such that the distance between the earphone 31 and the microphone 32 is substantially equal to that in FIG. 4, that is, when the user sets the earphone 31 in his ear. The length is set so as to properly collect the voice of the user, for example, the length from the mouth to the throat.

Further, the earphone 31 and the microphone 3
The cord 33 from 2 is drawn downward from the lower ends of these members 42 and 43 and connected to the plug 34.

According to this structure, when the earphone 31 is set in the ear, as shown in FIG. 3, the microphone 32 is moved substantially right below the ear by the arm 41.
It is located at the height from the chin to the throat.

In this case, as shown by arrow A in FIG. 2, the member 42 can be rotated about the arm 41 in the horizontal plane, and as shown by arrow B, the member 43 can be rotated. , The member 42 can be rotated in a vertical plane. Further, at this time, the arm 41
Has hardness, the member 42 is slidably provided on the arm 41, and the member 43 is slidably provided on the member 42.

Therefore, as shown by the arrow C in FIGS. 2 and 3, the microphone 32 provided on the member 43.
The direction of the directivity axis of the microphone 32 can be directed to the mouth of the user, and in that state, the direction of the directivity axis of the microphone 32 can be fixed. At this time, the microphone 32 is unidirectional.

Therefore, the microphone 32 can surely collect the voice of the user and does not collect noise from below, so that the microphone 32 is not collected.
In the output signal of, the level of the voice signal of the user increases and the signal level of ambient noise decreases. That is, it is possible to obtain an audio signal with a good S / N, and it can be used even in a noisy environment.

Thus, according to the present invention, the microphone 32 has a unidirectional characteristic and the direction of the directional axis can be fixed to the direction of the mouth of the user, so that the microphone 32 can be clearly displayed even in a noisy environment. Therefore, the mobile phone can be used even in a noisy environment.

Further, since the direction of the directional axis of the microphone 32 does not shift, a microphone having a strong directivity can be used as the microphone 32, and a sufficiently clear voice signal can be obtained.

Further, the cord 33 does not get caught in the arm 41, which is convenient. Furthermore, since the microphone 32 and the arm 41 do not come in front of or near the mouth of the user, that is, it is possible to make a call in the same style as when listening to a headphone stereo, and for example, to use it in public without any resistance. can do.

In the above description, the arm 41 need only be rigid enough to fix the direction of the directional axis of the microphone 32 when the earphone microphone 30 is used, and may have some flexibility. For example, when not in use, it may be configured to be folded in two. Also, the earphone 31 may be an outer ear type with ear hooks.

Furthermore, although the earphone microphone 30 is used in combination with the portable telephone 10 in the above description, it can also be used as an earphone microphone for a transceiver or the like. The direction of the directional axis of the microphone 32 can be changed and fixed by means other than the members 42 and 43.

[0030]

According to the present invention, the microphone 32 is provided.
With unidirectional, the direction of the directional axis can be fixed to the direction of the user's mouth, so a clear audio signal can be obtained even in a noisy environment.
Therefore, the mobile phone can be used even in a noisy environment.

Furthermore, since the direction of the directional axis of the microphone 32 does not deviate, a microphone having a strong directivity can be used as the microphone 32, and a sufficiently clear voice signal can be obtained.

Further, the cord 33 does not get caught in the arm 41, which is convenient. Furthermore, since the microphone 32 and the arm 41 do not come in front of or near the mouth of the user, that is, it is possible to make a call in the same style as when listening to a headphone stereo, and for example, to use it in public without any resistance. can do.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of an example of the present invention.

FIG. 2 is an enlarged perspective view showing a part of an example of the present invention.

FIG. 3 is a diagram showing a usage state of an example of the present invention.

FIG. 4 is a perspective view showing an example of a mobile phone.

FIG. 5 is a perspective view showing a conventional example.

FIG. 6 is a diagram showing a usage state of a conventional example.

[Explanation of symbols]

 10 Mobile Phone Main Body 30 Earphone Microphone 31 Earphone 32 Microphone 33 Connection Cord 34 Connector Plug 41 Connecting Arm 42 Supporting Member 43 Supporting Member

Claims (4)

[Claims] 1. An earphone, a unidirectional microphone, a substantially linear arm that connects the earphone and the microphone and has a predetermined hardness, and a direction of the microphone with respect to the arm. An earphone microphone having means for fixing the axial direction in the direction of the user's mouth. 2. An earphone, a unidirectional microphone, an earphone, a substantially linear arm which connects the earphone and the microphone and has a predetermined hardness, and a direction of the microphone with respect to the arm. An earphone microphone having means for varying and fixing the axial direction in the direction of the user's mouth. 3. An earphone, a unidirectional microphone, an earphone, and a substantially linear arm which connects the earphone and the microphone and has a predetermined hardness, and a direction of the microphone with respect to the arm. An earphone microphone having means for fixing the axial direction to the direction of the user's mouth, wherein the earphone and the connection cord of the microphone are pulled out from the vicinity of the microphone. 4. An earphone, a unidirectional microphone, a substantially linear arm provided downward from the earphone and having a predetermined hardness, and a microphone provided at the lower end of the arm,
A supporting member that slidably and rotatably supports in a horizontal plane and in a vertical plane, so that the direction of the directional axis of the microphone is fixed in the direction of the mouth of the user by the supporting member. Earphone microphone.